Home / 30,885,378.30-42,604,114.05-19,262,763.54

Finding the Fourth Proportional to 30,885,378.30, 42,604,114.05 and 19,262,763.54

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Solution

The fourth proportional to 30,885,378.30, 42,604,114.05 and 19,262,763.54 is: 26,571,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,885,378.30 : 42,604,114.05 = 19,262,763.54 : x
  2. Step 2: Convert to fraction form
    30,885,378.30/42,604,114.05 = 19,262,763.54/x
  3. Step 3: Cross multiply
    30,885,378.30x = 42,604,114.05 × 19,262,763.54
  4. Step 4: Simplify right side
    30,885,378.30x = 820,672,974,776,341.62
  5. Step 5: Solve for x
    x = 820,672,974,776,341.62/30,885,378.30
  6. Step 6: Final answer
    x = 26,571,569.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.